When (I do / I've done). Условные предложения с when и if

A

Изучите следующую ситуацию:

Предложение 'I'll phone you when I get home' состоит из двух частей:


и

главная часть:
часть с when :

'I'll phone you lot'
'when I get home'

Время в предложении - будущее ('tomorrow'), но мы используем настоящее время (I get) в части предложения с when.

Мы не используем will в части предложения с when.

Еще немного примеров:

  • We'll go out when information technology stops raining. (non when it will stop)
  • When you are in London over again, come and see us. (not When you will be)
  • (said to a kid) What practice you lot want to exist when you grow upward? (not will abound)

То же самое происходит и после while / before / after / every bit soon as / until или till:

  • I'chiliad going to read a lot while I'm on vacation. (non while I will be)
  • I'll probably go back dwelling house on Sunday. Before I go, I'd like to visit the museum.
  • Wait here until (or till) I come back.

B

Вы также можете использовать nowadays perfect (take done) после when / after / until / as presently as:

  • Tin can I borrow that volume when you've finished with information technology?
  • Don't say anything while Ian is hither. Wait until he has gone.

Если вы используете present perfect, одно действие должно быть завершено перед другим (так, что два действия не происходят в одно и то же время):

  • When I've phoned Kate, nosotros can have dinner.
    (= Сначала я позвоню Кате, и только потом мы можем начать обедать.)

Не используйте present perfect, если два действия происходят в одно и то же время:

  • When I phone Kate, I'll enquire her about the party. (not When I've phoned)

Часто можно использовать как present simple, так и present perfect:

I'll come up as soon as I finish.

I'll come every bit soon as I've finished.

You'll feel better after you have something to eat.

Yous'll feel ameliorate after you've had something to eat.

C

После if, для будущего мы обычно используем present uncomplicated (if I practice / if I meet и др.):

  • It'due south raining hard. Nosotros'll get wet if we go out. (not if nosotros will become)
  • I'll exist angry if it happens over again. (not if it will happen)
  • Hurry up! If we don't hurry, we'll be late.

D

Сравните when и if:

Мы используем when, говоря о чем-то, что несомненно случится:

  • I'm going shopping afterwards. (for sure)When I become shopping, I'll purchase some food.

Мы используем if (не when), говоря о том, что возможно случится:

  • I might go shopping later. (it'due south possible)If I go shopping, I'll buy some food.
  • If it is raining this night, I won't become out. (not When it is raining)
  • Don't worry if I'g late this night. (not when I'm late)
  • If they don't come before long, I'm not going to expect. (not When they don't come up)

Упражнения

1. Закончите предложения, используя глаголы в скобках. Все предложения о будущем. Используйте will/won't или nowadays simple (I come across / he plays / it is и др.).

  1. I (phone) you when I (get) dwelling from work.
  2. I want to see Julia earlier she (get) out.
  3. We're going on vacation tomorrow. I (tell) you all almost it when we (come) back.
  4. Brian looks very unlike now. When you lot (see) him once again, you (not / recognise) him.
  5. (you / be) lonely without me while I (exist) away?
  6. We must do something before long before information technology (be) besides late.
  7. I don't want to go without you lot. I (wait) until you (be) ready.
  8. Sue has applied for the job, simply she isn't very well-qualified for information technology. I (be) surprised if she (go) information technology.
  9. I hope to play tennis tomorrow if the weather (exist) overnice.
  10. I'm going out now. If everyone (phone) while I (be) out, tin can you take a message?

Key

2. Сделайте одно предложение из двух.

  1. It will cease raining soon. So we'll go out.
  2. I'll observe somewhere to live. So I'll give yous my address.
  3. I'll do the shopping. Then I'll come straight back domicile.
  4. It'southward going to become dark. Let's become dwelling before that.
  5. She must apologise to me commencement. I won't speak to her until and so.

Key

iii. Прочитайте ситуации и закончите предложения.

  1. A friend of yours is going on vacation. You desire to know what she is going to practise.
    Y'all ask: What are you going to do when ?
  2. A friend of yours is visiting yous. She has to go soon but mayhap at that place's fourth dimension for some more coffee.
    You ask: Would you like some more coffee before ?
  3. You want to sell your car. Jim is interested in ownership it, but he hasn't decided yet.
    You ask: Can y'all let me know as presently as ?
  4. Your friends are going to New York before long. Y'all want to know where they're going to stay.
    You ask: Where are you going to stay when ?
  5. The traffic is very bad in your town, but they are edifice a new road at the moment.
    Yous say: I recall things will be improve when they .

Key

4. Выберите when или if.

Key

Подробности
Просмотров: 4966